IrvineHacks 2026 Irvine, CA, USA Create. Connect. Inspire. $10,200 in prizes Feb 27 – Mar 1, 2026 388 participants
CruzHacks 2026 Santa Cruz, CA, USA CruzHacks brings together a diverse and inclusive group of students and professionals to develop innovative solutions to solve real-world challenges. Non-monetary prizes Jan 16 – 18, 2026 279 participants
Los Altos Hacks IX Sunnyvale, CA, USA The world's largest high school hackathon Non-monetary prizes Apr 5 – 6, 2025 293 participants
Google AI Hackathon Online Build a creative app that uses Google’s Generative AI tools. Push the boundaries of what Gen AI apps can do with Gemini! $50,000 in prizes Winners announced 15483 participants
EduCathon Online Brainstorm Ideas or Express your Code with EduCathon, Where all of us learn with experience $31,090 in prizes Winners announced 377 participants
Los Altos Hacks 8 Sunnyvale, CA, USA The world's largest high school hackathon $4,134 in prizes Apr 6 – 7, 2024 216 participants
HackBlue Cyber Hackathon Online We challenge participants to innovate in cybersecurity solutions that bolster digital trust through projects from IoT security to phishing prevention or cybersecurity education. $75,100 in prizes Winners announced 190 participants
CruzHacks 2023 Santa Cruz, CA, USA CruzHacks brings together a diverse and inclusive group of students and professionals to develop innovative solutions to solve real-world challenges. $40,012 in prizes Feb 3 – 5, 2023 296 participants
Hack3 Online We hosted the world's largest hackathon for high schoolers in 2021. We're back this year with Xylem, Github, Amazon, and Slack. Live judging, 10+ workshops, 30+ judges and mentors! $53,700 in prizes Winners announced 361 participants
LancerHacks V Mountain View, CA, USA LancerHacks V is a twelve-hour hackathon organized by sfhacks, the student-led programming club at Saint Francis High School. $7,962 in prizes Mar 5, 2022 83 participants
Helyx USA Hacks Online Virtual biology-based hackathon $25 in prizes Winners announced 31 participants
Digital HQ Slackathon Online Make work flow! Build an impactful solution on Slack that offers a better way to work digitally. $47,000 in prizes Winners announced 500 participants
StemWarriorHacks (Winter) Online Open your eyes to the depths, diversity, and power of computer science! $120,247 in prizes Winners announced 527 participants
